if (document.images)
    {
        home_off = new Image()
        home_off.src = "Graphics/HomeButton.png"
        home_over = new Image()
        home_over.src = "Graphics/HomeButtonOver.png"
        home_press = new Image()
        home_press.src = "Graphics/HomeButtonPressed.png"
        comp_info_off = new Image()
        comp_info_off.src = "Graphics/CompanyInfoButton.png"
        comp_info_over = new Image()
        comp_info_over.src = "Graphics/CompanyInfoButtonOver.png"
        comp_info_press = new Image()
        comp_info_press.src = "Graphics/CompanyInfoButtonPressed.png"
        contact_off = new Image()
        contact_off.src = "Graphics/ContactButton.png"
        contact_over = new Image()
        contact_over.src = "Graphics/ContactButtonOver.png"
        contact_press = new Image()
        contact_press.src = "Graphics/ContactButtonPressed.png"
        download_off = new Image()
        download_off.src = "Graphics/DownloadButton.png"
        download_over = new Image()
        download_over.src = "Graphics/DownloadButtonOver.png"
        download_press = new Image()
        download_press.src = "Graphics/DownloadButtonPressed.png"
    }
    else
    {
        home_off = ""; home_over = ""; home_press = ""; document.home_button = ""
        comp_info_off = ""; comp_info_over = ""; comp_info_press = ""; document.comp_info_button = ""
        contact_off = ""; contact_over = ""; contact_press = ""; document.contact_button = ""
        download_off = ""; download_over = ""; download_press = ""; document.download_button = ""
    }